Oil burner



July 23, 1929. E. R. EVANS 4 ET AL 1,721,901

OIL BURNER Filed July 25, 1925 Z Sheets-Sheet l A TTORNEY.

y 3, 1929. E. R. EVANS ET AL 1,721,901

0 IL BURNER Filed July 23, 1923 2 Sheets-Sheet 2 J I I N V EN TOR-J vfan 2 5mm flea-Z lV. Kirk/ml VM WM/ZMQM,

A TTORNE Y.

Patented July 23, 1929.

UNITED STATES 1,721,901 PATENT OFFICE.

EDWIN R. EVANS AND CARL M. TICHENOR, F DETROIT, MICHIGAN.

OIL BURNER.

Application filed July 23, 1923. Serial No. 653,267.

This invention relates to heating apparatus and refers more particularlyto liquid fuel burners for stoves or furnaces.

An object of the invention is to provide a practical and efficientapparatus which is capable of completely atomizing heavy liquid fuelssuch as crude oil, the heavier distillates and residuum oils and mixingthe atomized fuel with air to form a mixture that can be completelyburned without the formation of smoke.

Another object is to provide a simple apparatus in which the liquid fuelreservoir may be raised or lowered relative to the burner for varyingthe level of the fuel in the burner.

With the above and other objects in view, the invention consists incertain novel features of construction, combination and arrangement ofparts as will be more fully described and particularly pointed out inthe ap ended claims.

n the accompanying drawings Figure 1 is aside elevation of an apparatusembodying my invention and showing parts in section;

Figure 2 is a top'plan view thereof;

Figure 3 is an end view thereof.

Referring now to the drawings in wh1ch like characters of referencedesignate corresponding partsthroughout the several views, the numeral 1designates an upright frame for supportin an oil burner 2 whichpreferably is provided with an open top receptacle 3 for oil, and adischarge cup l-that preferably receives its supply of 011 through avertical tube 5 which is carried by the hub 6 of the cup and whichpreferably extends downwardly into the receptacle 3. The receptacle ispreferably formed integral with a spider 7 that is detachably secured tothe frame 1 while the cup 4 is preferabl rotatable within an annularup'standin' ange 8 of a horizontal ring 9 that is also etachably securedto the frame 1. T

If desired, the ring 9 may be provided with extensions 10 for engagementwith suitable supports (not shown) in the fire box of a furnace. The hub6 of the cup is }preferably fixed upon a vertical shaft 11 whic isdriven by a suitable electric motor 12 detachably mounted upon the frame1 at the lower end thereof. A thermostat (not shown) preferably controlsthe operation of the motor. The shaft 11 is preferably. rotatablymounted the receptacle 3 and is preferably detachably in a verticalcentral tubular portion 13 of.

secured to a motor driven shaft 14 by meanswe preferably provideantifriction bearings 16 between the hub 6 and the upper end of thetubular portion 13 of the receptacle. The cup 4 is substantiallyfrusto-conical in form and is preferably provided at its lower end witha trough 17 that is adapted to catch any Oll draining down the wallsthereof. The trough 17 is preferably spaced from the hub 6 of the cup toprovide an opening through which air may be drawn upwardly by a seriesof radially extending vanes 18, preferably formed integral with thelower face of a cover 19 which is preferably secured to the upper end ofthe shaft 11 and which. is preferably spaced from the outwardly flaringupper end 20 of the cup to provide an annular discharge orifice 21.

W'it-h the construction thus far described,

. it will be apparent that rotation ofthe cup 4 will cause the tube 5 totravel in a circular path in the receptacle 3 and thus to pick up oiltherefrom. 'As a result of the centrifugal force, the oil dischargedfrom the tube 5 will be thrown toward the walls of the cup and will bemixed with air drawn upwardly through the opening in the bottom of thecup. This mixture in the form of vapor will then be discharged throughthe 0rifice'21 and will burn at the point indicated by the lines 23 inthe form of an annulus, the vapor mixture being ignited by a suitablepilot light (not shown).

To prevent the oil from splashing out of the receptacle 3 when the tube5 travels around therein, we preferably provide an annular flange 24which is preferably formed integral with the receptacle 3 adjacent tothe open top thereof. An annular skirt 25 is also preferably formedintegral with the hub 6 of the cup and preferably extends into the openend of the receptacle 3 above the flange 24.

The oil reservoir isdesignated generally by the numeral 25 andpreferably consists of an inverted bottle 26 having a neck 27registering with an upstandin tubular extension 28 of a container 29Wl'llCh is preferably provided with lateral extensions 30 havingapertured portions 31 at the ends thereof threaded upon a plurality ofstandards 32 and which is preferably connected to the receptaele3 of theburner by means of a suit able conduit 33. The top of the container 29is preferably provided with an opening 34 which receives an air tube 35,while' the bottom of the container is preferably provided with adraining opening 36 that is preferably closed by means of a suitableplug 37.

A cap 38 is preferably detachably secured charge nozzle. The cap 38 ispreferably provided with a cup-shaped portion 41 that projects into thetubular extension 28 of the container and thus prevents the neck of thebottle moving accidentally out of registration with the tubularextension 28, while aplurality of sleeves 42 preferably surround thestandards 32 above the lateral extensions of the container and arepreferably secured at their upper ends to a ring or band 4:3 WVhlCl1preferably surrounds the bottle.

The size of the flame in the burner is varied by the amount of oil inthe receptacle 3, and

the oil supplied in this receptacle is varied by the position of thebottle 26. Thus, when the standards are rotated by engagement of asuitable tool (not shown) with the hex-' agonal bases 44 thereof, thecontainer 29, sleeves 42 and bottle 26 will be moved simultaneouslyvertically with respect to, the burner, and as a result the level of theliquid fuel in the receptacle 3 will be varied.

lVhile it is believed that from the fore going description, the natureand advantages of the invention will be readily apparent, we desire tohave it understood that we do not limit ourselves to what is hereinshown and described and that such changes may be resorted to whendesired, as fall within the scope of what is claimed.

\Vhat we claim as our invention is:

1. The combination with a hollow rotatable discharge member, of areceptacle for.

liquid fuel beneath said member, means for eil'ecting a flow of airthrough said member, driving means for rotating said memberand meansmovable in an orbit about said'driving means for transferring fuel fromsaid receptacle to said member.

2. In an apparatus of the class described, a burner having a receptaclefor liquid fuel and a discharge cup, means moving in an orbit forsupplying fuel from the receptacle to the cup, and a motor-beneath thereceptacle for rotating the cup to discharge the contents thereof.

3. In an apparatus of the class described, a burner having an open topreceptacle for liquid fuel and a rotatable discharge cup adapted to'receive fuel from the receptacle,

cup to cause said member to move around in the receptacle and totransfer fuel from the receptacle to the cup, and means for preventingthe fuel from splashing out of the receptacle when said member movesaround therein.

l. In an apparatus of the class described, a burner having a receptaclefor liquid fuel and a discharge cup, means for supplying fuel from thereceptacle to the cup, and means below the receptacle for rotating saidcup and fuel supply means.

5. In apparatus of the character described, a receptacle for fuel, arotatable discharge member located above said receptacle, means foreffecting a flow of air through said member, means below said receptacleextending upwardly therethrough for rotating said dis charge member andmeans moving in an orbit about the axis of said discharge member forconducting fuel thereto from said receptacle.

6. In an apparatus of the class described, an open top receptacle forliquidv fuel, a rotatable discharge member disposed above saidreceptacle, means for effecting a flow of air through said dischargemember, means adapted to travel around in said receptacle fortransferring fuel to said discharge member, and means for'preventingfuel splashing out of said receptacle.

7 In an apparatus of the class described, a burner having a receptaclefor liquid fuel and a rotatable discharge member, means'located belowsaid receptacle and having a shaft extending vertically therethrough fordriving said discharge member, and means to one side of the drivingshaft rotatable with said member adapted to travel around the axis ofrotation of said member and in the receptacle for conveying fuel fromthe receptacle to the discharge member.

8. In an oil burner structure, a receptacle in which fuel is maintainedat a substantially predeterminedlevel, a rotatable burner cup arrangedabove said receptacle, a motor arranged below said receptacle with theshaft thereof extending upwardly centrally through said receptacle andconnected to said burner cup, and means carried by said cup movable inan orbital path about said shaft adapted to skim the surface of said'fuel for supplying fuel to said on a 9. An oilburner of substantiallythe character described comprising in combination, areceptaclecontaining fuel, a rotatable cup like member located abovesaid receptacle, a motor below said receptacle, a shaftdriven by saidmotor extending upwardly throu '11 said receptacle for rotating saidcup-1i e member and means moving in an orbital path about said shaftadapted to dip into the fuel in said receptacle for conducting'fuel'there from into said cup-like member.

10. An oil burner of substantially the charreceptacle containing fuel, arotatable burner cup located above said'receptacle, a motor below saidreceptacle, a shaft driven by said motor extending upwardly through saidreceptacle for rotating said burner cup and means carried by saidburnercup and moving in an orbital path about said shaft adapted to dipinto the fuel in said receptacle for conducting fuel therefrom into saidmember.

11. In an oil burner structure, the combination with an oil receptacleprovided with a vertical rotatable shaft, of a burner cup se-' cured tothe upper end of said shaft and having a cap disposed thereon to providean annular burner orifice, a tube extending from the bottom of saidburner cup and provided with a tip arranged to skim the surface of theoil-in said receptacle and to lift aspray therefrom, said tube extendinginto said burner cup, and power means for rotating said verti-- calshaft.

12. In an oil burner structure, the combination with an oil receptacleprovided with a vertical rotatable shaft, of a burner cup secured to theupper end of said shaft and having a cap disposed thereon to provide anozzle orifice, said cup being provided with skirted means dependinginto said receptacle and interiorly provided with oil-lifting means,said oil-lifting means being provided with an oil entrance to saidburner cup, and power means for rotating said cup.

13. In an oil burning structure, the combination with an oil receptacle,of a burner cup having air openings in its under side disposedrotatively abovesaid casing, means on said cup displaced from the axisthereof and projecting into said casing adapted for lifting oil'whensaid cup is rotated, said oil lifting means being provided with an oilentrance to said burner cup, additional means associated with said cupfor drawing air through said openings when said cup is rotated, andpower means for rotating said cup.

14. In an oil burner structure, the combination with a chambered oilwell casing, of means for supplying oil thereto, a burner cup rotatablydisposed above said casing and provided with an oil pick-tube extendinginto said casing and arranged to lift oil therefrom, means for supplyingair for combustion, and power means for rotating said burner cup.

In testimony whereof we ailix our s1gnatures.

EDWIN R. EVANS. CARL M. TICHENOR.

